She only wanted to wander a silent land, to have time to herself. To be away from everything, if only briefly. Certainly the last place one would find company. And yet, what awaits over that horizon? (A read for introspective moon-gazing)

An otherwise normal day in Equestria is upset when the whole of the land awakens to find itself in human form. The former ponies now face a movement spearheaded by one Yukari Yakumo with unknown motive, from the illusory world of Gensokyo.

After waking up in Equestria for reasons unknown, Reimu, Marisa, and Sanae must cooperate with the ponies of Ponyville and protect them from Gensokyo's youkai population that has also found its way into the colorful cartoon world.

Princess Luna begins to realize that the threat of Nightmare Moon is not completely gone... but how will everyone react when the dark forces destroy the Pony Border... the boundary between the worlds of Equestria and Gensokyo?